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# CommandPrompt
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## Description
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This CommandPrompt is an *highly* customised prompt for bash
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It show the time, user, current directory and an info.
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The info is an icon if pwd is in the configured special folders (see more below).
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However if pwd is in the directory or sub-directory of a project, it will find by probabilities
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where the project root is and show the project's folder name.
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It also detect the majority language in the current directory and displays an icon depending on it !
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For the moment the supported language are :
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- C
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- C++
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- Rust
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- Go
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- Python
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- Java
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- Ruby
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- Javascript
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- PHP
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- C#
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- HTML/CSS (considered same language)
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## How to install
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You can install this prompt by copying the file to any directory you want (for example ~/.config/bash/)
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and calling with **source** the file at the end of your .bashrc or .profile depending on your system.
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If your system is in a different language you can change the special folder names direcly at the beginning
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of the file.
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## Internal commands
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This command prompt include 2 internal command that you can call manually if you want to
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manipulate cache or debug the prompt.
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These are :
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- find_project_root_dir
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- find_dir_majority_language
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For more info call them with --help.
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Binary file not shown.
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After Width: | Height: | Size: 153 KiB |
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#!/bin/env bash
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# folder names, change it depending on your language
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documents="Documents"
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music="Music"
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pictures="Pictures"
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videos="Videos"
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downloads="Downloads"
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declare -A PROJECT_ROOT_CACHE
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export FIND_PROJECT_ROOT_DEBUG=0
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find_project_root() {
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local args=${@}
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local cache_key="cache_$(echo -n $PWD | md5sum | cut -d' ' -f1)"
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# args detection
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for arg in ${args}; do
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if [[ "${arg:0:2}" = "--" ]]; then
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arg="${arg:2}"
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case "${arg}" in
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"help")
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echo -e "Usage : find_project_root [OPTION(S)]\n"
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echo "Find the folder that could be a project root."
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echo "It is automatically called by the prompt generator but you can call it if you want to access or modify the cache.\n"
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echo "The result is stocked in the env variable PROJECT_ROOT. The exit value is 0 when project root found or 1 if not."
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echo "Options :"
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echo " --print-cache print project root cache"
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echo " --clear-cache clear project root cache ; WARNING : the cache is wiped automatically in new bash instances."
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echo " --toggle-debug toggle debug mode"
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echo " --help display this help"
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return 0 ;;
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"print-cache")
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for key in ${!PROJECT_ROOT_CACHE[@]}; do
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echo "[${key}]=${PROJECT_ROOT_CACHE[$key]}"
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done ;;
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"clear-cache")
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PROJECT_ROOT_CACHE=() ;;
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"toggle-debug")
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FIND_PROJECT_ROOT_DEBUG=$((! FIND_PROJECT_ROOT_DEBUG)) ;;
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*)
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echo -e "Error : unrecognised parameter : --${arg}\n Try typing --help" ;;
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esac
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else
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echo -e "Error : unrecognised parameter : ${arg}\n Try typing --help"
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fi
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done
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# search cache for existing data
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if [[ -n "${PROJECT_ROOT_CACHE[$cache_key]}" ]]; then
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if [[ "${PROJECT_ROOT_CACHE[$cache_key]}" != "." ]]; then
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PROJECT_ROOT="${PROJECT_ROOT_CACHE[$cache_key]}"
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return 0
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fi
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PROJECT_ROOT=""
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return 1
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fi
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# estimate probability of root dir
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local depth=0
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local current_dir="$PWD"
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local current_max_score=0
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local current_dir_score=0
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local project_root="."
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while (( depth < 10 )) && [[ "${current_dir}" != "/" ]]; do
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current_dir_score=0
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# 100% root
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for path in README.md README.rst README LICENSE \
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Dockerfile docker-compose.yml \
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.git; do
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if [[ -e "${current_dir}/${path}" ]]; then
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(( FIND_PROJECT_ROOT_DEBUG )) && echo "${path}"
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((current_dir_score += 100))
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fi
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done
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# 90% root
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for path in CMakeLists.txt \
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Cargo.toml Cargo.lock \
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go.mod go.sum \
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pyproject.toml \
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pom.xml \
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package.json \
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.csproj .sln; do
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if [[ -e "${current_dir}/${path}" ]]; then
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(( FIND_PROJECT_ROOT_DEBUG )) && echo "${path}"
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((current_dir_score += 90))
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fi
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done
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# 75% root
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for path in Makefile \
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requirements.txt \
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build.gradle \
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Gemfile \
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tsconfig.json \
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composer.json \
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.gitignore; do
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if [[ -e "${current_dir}/${path}" ]]; then
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(( FIND_PROJECT_ROOT_DEBUG )) && echo "${path}"
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((current_dir_score += 75))
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fi
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done
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# 50% root
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for path in webpack.config.js vite.config.js babel.config.js .babelrc rollup.config.js \
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lib include config scripts bin src third_party 3rd_party vendor \
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.env .env.local \
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.dockerignore; do
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if [[ -e "${current_dir}/${path}" ]]; then
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(( FIND_PROJECT_ROOT_DEBUG )) && echo "${path}"
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((current_dir_score += 50))
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fi
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done
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# 25% root
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for path in configure \
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Gopkg.toml \
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Pipfile Pipfile.lock setup.py tox.ini .python-version \
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build.xml settings.gradle \
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packages.config \
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Directory.Build.props \
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.htmlhintrc .stylelintrc \
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Gemfile.lock \
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composer.lock \
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Rakefile; do
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if [[ -e "${current_dir}/${path}" ]]; then
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(( FIND_PROJECT_ROOT_DEBUG )) && echo "${path}"
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((current_dir_score += 25))
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fi
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done
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if (( current_dir_score >= current_max_score )) && (( current_dir_score > 50 )); then
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current_max_score=${current_dir_score}
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project_root=${current_dir}
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fi
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(( FIND_PROJECT_ROOT_DEBUG )) && echo -e "${depth} : ${current_dir}\n score : ${current_dir_score}"
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current_dir=$(dirname "$current_dir")
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((depth++))
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done
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# save data to cache
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PROJECT_ROOT_CACHE[${cache_key}]="${project_root}"
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if [[ "${project_root}" != "." ]]; then
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PROJECT_ROOT="${project_root}"
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return 0
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fi
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PROJECT_ROOT=""
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return 1
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}
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declare -A DIR_MAJORITY_LANGUAGE_CACHE
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export FIND_DIR_MAJORITY_LANGUAGE_DEBUG=0
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find_dir_majority_language() {
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local args=${@}
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local cache_key="cache_$(echo -n $PWD | md5sum | cut -d' ' -f1)"
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# args detection
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for arg in ${args}; do
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if [[ "${arg:0:2}" = "--" ]]; then
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arg="${arg:2}"
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case "${arg}" in
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"help")
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echo -e "Usage : find_dir_majority_language [OPTION(S)]\n"
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echo "Find the majoritary language in the current and sub-folders."
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echo "It is automatically called by the prompt generator but you can call it if you want to access or modify the cache.\n"
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echo "The result is stocked in the env variable DIR_MAJORITY_LANGUAGE. The exit value is 0 when project root found or 1 if not."
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echo "Options :"
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echo " --print-cache print majority language cache"
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echo " --clear-cache clear majority language cache ; WARNING : the cache is wiped automatically in new bash instances."
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echo " --toggle-debug toggle debug mode"
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echo " --help display this help"
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return 0 ;;
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"print-cache")
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for key in ${!DIR_MAJORITY_LANGUAGE_CACHE[@]}; do
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echo "[${key}]=${DIR_MAJORITY_LANGUAGE_CACHE[$key]}"
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done ;;
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"clear-cache")
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DIR_MAJORITY_LANGUAGE_CACHE=() ;;
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"toggle-debug")
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FIND_DIR_MAJORITY_LANGUAGE_DEBUG=$((! FIND_DIR_MAJORITY_LANGUAGE_DEBUG)) ;;
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*)
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echo -e "Error : unrecognised parameter : --${arg}\n Try typing --help" ;;
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esac
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else
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echo -e "Error : unrecognised parameter : ${arg}\n Try typing --help"
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fi
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done
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# search cache for existing data
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if [[ -n "${DIR_MAJORITY_LANGUAGE_CACHE[$cache_key]}" ]]; then
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DIR_MAJORITY_LANGUAGE="${DIR_MAJORITY_LANGUAGE_CACHE[$cache_key]}"
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return
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fi
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# in case of equal quantity of per-language file, the majoritary language is arbitrary selected
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local C=0 Cpp=0 Rust=0 Go=0 Python=0 Java=0 Ruby=0 Javascript=0 PHP=0 CS=0 HTMLCSS=0
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local ext=""
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for file in "$PWD"/*.* "$PWD"/*/*.* "$PWD"/*/*/*.*; do
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#[[ -f "$file" ]] || continue
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local ext="${file##*.}"
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[[ "${ext}" = "${file}" ]] && continue
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case "${ext}" in
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c|h) ((C++)) ;;
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cpp|cxx|cc|hpp|hxx|hh|h) ((Cpp++)) ;;
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rs|rlib) ((Rust++)) ;;
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go) ((Go++)) ;;
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py|pyw|pyc|pyo) ((Python++)) ;;
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java|class|jar|war) ((Java++)) ;;
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rb|erb|rake) ((Ruby++)) ;;
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js|jsx|ts|tsx|mjs|cjs) ((Javascript++)) ;;
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php|phtml) ((PHP++)) ;;
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cs|csproj|sln) ((CS++)) ;;
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html|htm|css|scss|sass|less)((HTMLCSS++)) ;;
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esac
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done
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if (( FIND_DIR_MAJORITY_LANGUAGE_DEBUG )); then
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echo "C: ${C}"
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echo "C++: ${Cpp}"
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echo "Rust: ${Rust}"
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echo "Go: ${Go}"
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echo "Python: ${Python}"
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echo "Java: ${Java}"
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echo "Ruby: ${Ruby}"
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echo "Javascript: ${Javascript}"
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echo "PHP: ${PHP}"
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echo "C#: ${CS}"
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echo "HTML/CSS: ${HTMLCSS}"
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fi
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local max_count=0
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DIR_MAJORITY_LANGUAGE=""
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(( C > max_count )) && max_count=${C} && DIR_MAJORITY_LANGUAGE="C"
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(( Cpp > max_count )) && max_count=${Cpp} && DIR_MAJORITY_LANGUAGE="C++"
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(( Rust > max_count )) && max_count=${Rust} && DIR_MAJORITY_LANGUAGE="Rust"
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(( Go > max_count )) && max_count=${Go} && DIR_MAJORITY_LANGUAGE="Go"
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(( Python > max_count )) && max_count=${Python} && DIR_MAJORITY_LANGUAGE="Python"
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(( Java > max_count )) && max_count=${Java} && DIR_MAJORITY_LANGUAGE="Java"
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(( Ruby > max_count )) && max_count=${Ruby} && DIR_MAJORITY_LANGUAGE="Ruby"
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(( Javascript > max_count )) && max_count=${Javascript} && DIR_MAJORITY_LANGUAGE="Javascript"
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(( PHP > max_count )) && max_count=${PHP} && DIR_MAJORITY_LANGUAGE="PHP"
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(( CS > max_count )) && max_count=${CS} && DIR_MAJORITY_LANGUAGE="C#"
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(( HTMLCSS > max_count )) && max_count=${HTMLCSS} && DIR_MAJORITY_LANGUAGE="HTML/CSS"
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# save data to cache
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DIR_MAJORITY_LANGUAGE_CACHE[${cache_key}]="${DIR_MAJORITY_LANGUAGE}"
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}
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gen_prompt() {
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local LAST_EXIT_CODE=$?
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local HOUR="\[\033[0;31m\]╭─\[\033[7;47m\]\A"
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local USER="\[\033[45m\]\[\033[1;27;30m\]\u\[\033[7m\]"
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local FOLDER="\[\033[0;36m\]\[\033[1;7m\]\w"
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local INFO=" "
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if find_project_root; then
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find_dir_majority_language
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local language_icon=" "
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case "$DIR_MAJORITY_LANGUAGE" in
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"C") language_icon=" " ;;
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"C++") language_icon=" " ;;
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"Rust") language_icon=" " ;;
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"Go") language_icon=" " ;;
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"Python") language_icon=" " ;;
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"Java") language_icon=" " ;;
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"Ruby") language_icon=" " ;;
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"Javascript") language_icon=" " ;;
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"PHP") language_icon=" " ;;
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"C#") language_icon=" " ;;
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"HTML/CSS") language_icon=" " ;;
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esac
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INFO="${language_icon}$(basename "${PROJECT_ROOT}")"
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elif [ "$HOME" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/${documents}" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/${music}" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/${pictures}" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/${videos}" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/${downloads}" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/.config" = "$PWD" ]; then
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INFO=" "
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elif [ "$HOME/.local" = "$PWD" ]; then
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INFO=" "
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elif mount | grep -q "$PWD"; then
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INFO=" "
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fi
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INFO="\[\033[45m\]\[\033[1;27;30m\]${INFO}\[\033[7m\]\033[m"
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local ARROW_COLOR="35"
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(( ${LAST_EXIT_CODE} != 0 )) && ARROW_COLOR="32"
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local USER_PROMPT="\[\033[31m\]╰─\[\033[${ARROW_COLOR}m\]❯\[\033[0m\]"
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PS1="\n${HOUR} ${USER} ${FOLDER} ${INFO}\n${USER_PROMPT} "
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}
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PROMPT_COMMAND=gen_prompt
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